Ernest pain



(No Model.)

B. PAIN. ROTARY BRUSH.

,044. Patented Feb; 15, 1898.

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UNITED STATES I PATENT OFFICE.

ERNEST PAIN, 'oF' AUXERRE, FRANCE.

ROTARY BRUSH-f SPECIFICATION forming part of Letters Iatent No. 599,044,dated February 15, 1898.

Application filed September 3, 1857. Serial No. 650,530. (No model.)

brushes employed in certain industries, particularly in the manufactureof boots and shoes, for finishing, polishing, and other operations.

In order that myinvention and the manner in which it is to be performedmay be clearly understood, I shall describe it with reference to theaccompanying drawings, in which Figure l-is a cross-section of myimproved rotary brush on the line 1 lof Fig. 2. Fig. 2 is a longitudinalsection on the line 2 2 of Fig. 1 of a brush constructed according to myinvention; and Fig. 3 is adetail section, on a larger scale, of one of pthe disks which compose my brush, showing the manner in which thebristle-tufts are fixed therein.

My brush consists of an iron tube A, fixed on the driving-shaft, whichis intended to impart rotary motion to the brush. At one of its endsthis tube is formed with a fixed head B, while at its other end it isscrewthreaded toreceive a movable head 0, similar to the head B, andwhich is arranged to screw upon the screw-threaded portion of the tube.These heads serve to clamp between them the whole of the disks D, whichform the brush. Each of these disks (which are all threaded onto thetube A and are held on the latter by the grip of the heads B and C) ispreferably made of walnut wood,although any other suitable wood may beused. Upon one of its faces this disk is formed with a groove orcircular recess E (best shown in section in Figs. 2 and 3) and in whichthere opens a certain number of equidistant notches F, formed in thesame face of the disk-radially-to its circumference and extending onlyover a part of the thickness of the dis To mount the brush, I proceed inthe following manner: After having unscrewed the movable head 0 from thetube I place upon the latter one of the disks D, which I push onthe tubeuntil its full face bears against the fixed headB of the tube. Then, thetufts having been made of the desired length by folding the bristles toform a loop, I insert into the loop G of each tuft G thus formed.

, one of the legs of a metallic fastener or staple H of n shape. I thendip the tuft and the staple into hot pitch, and I insert the tuft thusdipped into oneof the notches F, nailing the stapleH onto the disk D andtaking care that the pitch shall not get beyond the surface of the disk,so as not to form upon the latter an extra thickness, whichwould preventthe next following disk fromfitting close up. When all the notches inthe disk D have been filled in this way, there is threaded head 0 isplaced in position and-is tightened up as firmly as possible, and thebrush is thus mounted. As the legs of the staple II are longer than thethickness of the disks, the result is that when the staples are drivenin they pass through the disk in which they are inserted and they becomefixed in the preceding disk, whereby a homogeneous whole is formed.After thedisks have been'thus piled together and tightened up togetherthere is no longer any danger of the bristles leaving the brush, becausethey are held in the notches F by the staple passing through the loopsand by the pitch.

It is to be understood that I do not limit myself strictly to theprecise arrangement of the parts shown, because .it is obvious that thearrangement may be varied to a certain extent without departing from theprinciple of my invention.

I claim .1. A cylindrical brush composed of a number of disks eachprovided on one of its faces notch or groove radiating from each of saidrecesses to the periphery of the disk, brushtufts formed by doubling abunch of bristles, the said tufts within the radial grooves and thedoubled ends thereof Within said recesses, and staples attaching saiddoubled ends within their recesses and the disks together, substantiallyas described.

3. A cylindrical brush composed of a tubular hub screw-threaded at oneend and pro vided with a circular head at the other, a number of diskseach provided with radial notches or grooves in one of its faces, tufts

